SWITCH SCIENCE PCA9622DR I2C 16ch LED driver board

This is a 16-channel LED driver board with an ^I2C connection that uses NXP's PCA9622DR and can also express LED brightness and dimming through PWM control. The board also includes LEDs, so simply connect to the ^I2C bus and issue a command to smoothly illuminate 16 LEDs. The LEDs are evenly spaced in a 4x4 grid. For detailed control instructions, please refer to the manufacturer's website or the PCA9622DR datasheet. Includes 16 independent LED ports, an output enable function for the LED ports, on/off control and 256-level (8-bit) PWM gradation control for each port, independent or group control for each port, 16 red LEDs, a signal pin for external drive, and an ^I2C pull-up resistor pattern (resistors not implemented).
*Please prepare your own pin headers and solder them according to your needs. *Regarding the LED port's output enable function: The PCA9622DR has an output enable pin (OE), which is connected to GND on the module by default, fixing the LED port to an output state. By cutting the solder jumper (SJ8) on the back of the board, you can enable the module's OE pin and control it externally. *Regarding the I2C pull-up resistor: By default, an I2C pull-up resistor is not installed. If you want to add one, solder a 1608-size chip resistor to R17 and R18. *Regarding the I2C address: The default address is set to 0xE0 (1110 000X) by the solder jumpers (SJ7 to SJ1). You can change the lower half of the I2C address by modifying the solder jumpers (SJ3, SJ2, SJ1) on the back of the board. *To change the upper address, you will need to modify the solder jumpers (SJ7, SJ6) on the front of the board and the solder jumpers (SJ5, SJ4) on the back of the board. *To change the address, you will need to cut the jumper pattern and then connect it to VDD(1) or GND(0) with a wire.